Somersville Staging Area, Black Diamond Mines Regional Preserve, Antioch

(90+ reviews on the web)
Nature / Park
Nestled near the base of Mount Diablo, Black Diamond Mines Regional Preserve was the site of California's largest coal mining operations from the 1860s to 1900, and was a major source of commercial sandstone from the 1920s-1940s. Today the area has 60+ miles of trails and many natural and historic features to explore. Park naturalists offer fun and informative programs both above and below ground and support other regional park operations throughout central and eastern Contra Costa County.
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  • I live nearby and we've visited a couple of times sticking to the main walkways. It's not a tough walk. We plan to go again and take the actual mine tour. The area is beautiful especially in spring wh...  more »
  • If you like hiking and exploring then this is a great option for you. All sorts of historic sites and places. Add to that mine tours which give you something not found anywhere else in the bay area. I...  more »
  • Who knew such an interesting site was just off Highway 4 (the Delta Hwy.)? There are underground mine tunnels, display cases and guided tours explaining the history of the 'Black Diamond (coal) mine. ...  more »